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12 commits

Author SHA1 Message Date
Pete Batard
8fb602b8ee
[mbr] use 80x25:16 text mode rather than 640x480:16 VGA mode
* This should produce the same output while improving compatibility with systems that have a broken VGA implementation.
* Also fix an LD error with newer gcc toolchains.
2022-07-04 15:08:55 +01:00
Pete Batard
2dd538b7cb
[core] fix MBR protective message overwriting the primary GPT
* We distractedly chose to populate the message from our protective MBR
  for GPT/UEFI-only boot media into the 4KB that directly followed the
  MBR, which of course is space that is being used by the primary GPT.
* This resulted on systems having to fall back to using the secondary
  GPT, which not all appear to be designed to do.
* Alter the code to ensure the protective message is written at LBA 34,
  after the primary GPT.
* Closes 
2020-04-13 17:05:33 +01:00
Pete Batard
e0bc2e5ffd
[core] fix reporting of unpartitioned drives
* Also add an extra note to the protective GPT MBR
2020-02-20 11:58:03 +00:00
Pete Batard
98c630d81a
[mbr] finalize protective message MBR
* Note that msg.txt uses codepage 850
2020-02-19 18:49:39 +00:00
Pete Batard
bfbb9d2ed5
[mbr] replace gpt.S with a more generic msg.S
* msg.S now reads an ASCII message (with escaped colour sequences)
  from the following blocks, which is both more flexible and allows
  for more content to be displayed.
* Also adds Bochs testing to the MBR build facility
2020-02-19 14:23:42 +00:00
Pete Batard
28c1d6eb31
[core] display a notice about Legacy in the protective MBR for GPT
* This should help Windows users who create a GPT/UEFI drive and try to use it in BIOS/Legacy
* Also make sure that we take into account the split space for both "SELECT" and "DOWNLOAD"
2019-03-16 13:12:08 +00:00
Josh Soref
fe3b1eb6f6 [misc] fix spelling mistakes
* Closes 
2013-06-22 01:15:36 +01:00
Pete Batard
bf2cb0bd88 [ui] add advanced mode
* Adds "bare" Syslinux, Rufus MBR and disabling of fake USB detection options
2012-05-17 22:56:19 +01:00
Pete Batard
d87f069963 [mbr] various fixes and improvements
* Adds USB masquerading according to disk ID in USB part table
* Adds debug feature
* Closes  - was due to flags not being properly saved/restored
* Closes 
* Fixes reentrant INT_13h for some platforms (eg. IBM t43p reenters
  INT_13h to issue an SCSI passthrough, AH=0x50)
* Embed MBR as a resource rather than an ms-sys header
2012-03-25 21:35:38 +01:00
Pete Batard
7874f5ea5d [mbr] added USB selection MBR support in Rufus
* added mbr_rufus.h to ms-sys, and MBR selection to UI
* also simplified int 13 override, fixing potential breakage on concurrent ints
2012-03-21 01:59:03 +00:00
Pete Batard
1b7f88eb99 [mbr] add LBA sector readout, as required by some BIOSes
* I'm looking at you, Dell Optiplex!
* also fix boot in case no secondary bootable drive exists
* also adds a readme
2012-03-20 20:31:54 +00:00
Pete Batard
0f57ed1684 [mbr] "Press any key to boot from USB..."
* Adds an MBR to prompt the use about USB or HDD boot
* If USB boot is not selected, an INT13h override is added to
  make the second bootable drive think it is first (0x81 -> 0x80)
* USB drive BIOS index is left unmodified
2012-03-20 02:56:34 +00:00